This glossary summarizes the terms used to model the data sources as Linked Data in the SEíS energy information system. They are based on standard definitions proposed by previous research projects like Datamine and by international ISO CEN standards (e.g. ISO 13790:2008).

AccumulatedGlobalSolarRradiationInJanuary

Global (direct and diffuse) solar radiation at a horizontal plane accumulated during the month of January.

AccumulatedGlobalSolarRadiationInJuly

Global (direct and diffuse) solar radiation at a horizontal plane accumulated during the month of July.

AverageUvalueOfEnvelope

Average heat transfer coefficient of the envelope. The heat transfer coefficient measures the rate of the heat transfer through a building element over a given area under stationary conditions. The value is the average of the different elements of the various surfaces of the envelope, weighted according to the area of each one. One the one hand, the heat transfer coefficients (U-values) do not include the effects of thermal bridges at the edge of the elements (referring to where they are adjacent to other elements: for example thermal bridges at the connection between a wall and a roof or a balcony). On the other hand thermal bridges that are within the elements are usually included. For example, in the case of windows, the U-value is a mean value that considers the glazing, the frame and the thermal bridges at the connection of glazing and frame (but the thermal bridges of the connection of window and wall are not considered in the U-value). Reference: DATAMINE-->C

Building

An Artifact that has a fixed spatial location which are intended to house Humans and their activities.

BuildingOwner

Natural or legal person who owns the building.

BuildingPhysicalProperties

Physicals properties of the building envelope (and internal mass elements and partitions) such as heat transfer coefficients, that affect the indoor climate conditions and the energy required to achieve indoor comfort.

BuildingProperties

Properties of the building as a whole, including its envelope and all technical building systems, that affect the indoor climate conditions and the energy required to achieve indoor comfort.

BuildingSystems

Technical building system, technical equipment for heating, cooling, ventilation, domestic hot water, lighting and electricity production. Reference: (prCEN/TR 15615:2006 (E))

CalculationSoftware

The software used for energy calculation: Energy Plus, Trnsys, ESP-r, DOE2, Ecotect, Archisun, Vasari, other.

Certificate

Information associated to building energy certificates. It includes indicators to qualify a building, based on their performance, e.g. according to a conventional scale such as "A, B, C...". Also, it includes the methodology of the certification process.

Climate

The climate is the pattern of variation in temperature, humidity, atmospheric pressure, wind, precipitation, atmospheric particle count and other meteorological variables in a given region over long periods. Reference: DATAMINE-->B

ClimateZone

Definition which characterizes the climate associated with the building location. The conventional definition of the different climate zones is established following the national regulation.

CO2emissions

Indicator of total CO2 emissions associated with all uses (heating, cooling, ventilation, domestic hot water, lighting and appliances among others) or for electricity production. This indicator expresses the emissions divided by the conditioned floor area. Reference: DATAMINE-->H CO2 emissions of the building; indicator, uses, prEN 15217:2005 (E)

Compactness

The ratio of the thermal envelope area and the conditioned volume. Reference: EN 15217:2007

ConditionedFloorArea

Conditioned floor area calculated on the basis of internal dimensions (taking as reference the inside surface of external walls). Reference: DATAMINE-->B

Consultant

Energy consultant in charge of evaluating the building energy performance and of issuing the calculations.

ConsultantQualification

Qualification of the energy consultant who issues the calculation.

Cooling

Characteristic of mechanical systems used for space cooling.

CoolingConsumption

Indicator of delivered energy for space cooling. The delivered energy is the energy, supplied to the technical building systems through the system boundary for space cooling. It is expressed agregating different energy carriers (The energy content of fuels is given by their gross calorific value). This indicator expresses the energy divided by the conditioned area. Reference: prEN 15603:2007 (E); indicator, prEN 15217:2005 (E)

CoolingDegreeDaysOnBase20

Accumulated temperature differences during the cooling period between the daily average outdoor temperature and the base temperature, which is the temperature that the cooling system assumed to provide. Accumulated temperature differences are not counted when daily average outdoor temperature is below the threshold temperature. The base temperature for residential buildings is assumed to be 20ºC.

CoolingDemand

Indicator of the energy need for cooling, the heat to be extracted from a conditioned space by a cooling system to maintain the intended temperature during a given period of time, not taking into account the technical building systems. This indicator expresses the energy divided by the conditioned area. Reference: DATAMINE-->E cold energy demand of the building; energy need, indicator, prEN 15217:2005 (E)

CoolingSystemType

It indicates if the cooling system is centralized, individual or a combination of both.

DateOfDataSet

The date corresponding to the information contained in the data set (e.g. the date of certificate). Unless specified, in case of a monitoring data set, it is the date when the monitoring started. Reference: DATAMINE-->A

DegreeOfCentralisationOfFirstHeatGenerator

The first heat generator may have different degrees of centralisation. The generator may be centralized (if possible, specification is shown: district heating, or central system for the building), individual (if possible, specification is shown: individual system for each apartment / building part, or heat generators in the rooms), or other. The first heat generator is the main system of heat generation in the building (that one which produces the largest amount of heat). If this information is not available, the first heat generator is determined by its use according the following order: firstly, heating; secondly, hot water; and thirdly, cooling. When different generators serve the same use, the first heat generator is determined according to the degree of centralization. This is, first, centralized systems, and afterwards, individual systems. Reference: DATAMINE-->D

DesignFirm

Architect or design firm in charge of the building design and responsible of the coordination of the design team.

EastOrientedPercentOfWindowArea

The ratio of the area of the East oriented windows with respect to the area of all windows.

EnergyCarrierOfFirstHeatGenerator

The energy can be provided to the heat generator by different energy carriers, such as oil, gas, coal, grid electricity, district heating, or solar radiation. An energy carrier is a substance or phenomenon that can be used to produce mechanical work or heat or to operate chemical or physical processes. The first heat generator is the main system of heat generation in a building (that one which produces the largest amount of heat). If this information is not available, the first heat generator is determined by its use according the following order: firstly, heating; secondly hot water, and thirdly cooling. When different generators serve the same use, the first heat generator is determined according to the degree of centralization of each one, considering, firstly, centralized systems, and afterwards, individual systems. Reference: DATAMINE-->D / ISO 13600:1997, cited in: prCEN/TR 15615:2006 (E)

EnvelopeArea

Area of the thermal envelope of a building. The building thermal envelope includes all building elements surfaces which separate the conditioned building interior from the building exterior. In addition, surfaces which separate the conditioned building interior from adjacent spaces are included. These elements may be walls, roofs and floors, basement areas or windows. Reference: DATAMINE-->C

Form

Morphological characteristics of the building shape, such as size, proportions or orientation.

HeatToApartmentsDistributionSystemsForHotWater

Heat delivered to the apartment’s distribution systems for hot water. The heat delivered to the distribution systems of each apartment for hot water, aggregated for the entire building.

HeatToApartmentsDistributionSystemsForHeating

Heat delivered to the apartment’s distribution systems for heating. The heat delivered to the distribution systems of each apartment for space heating, aggregated for the entire building.

Heating

Characteristic of mechanical systems used for space heating.

HeatingAndCoolingDemand

Indicator of energy demand for heating and cooling. It expresses the energy need for heating and cooling, which is the heat to be delivered to or to be extracted from, the conditioned space by a heating or cooling system to maintain the set-point temperature during a given period of time. This indicator expresses the energy divided by the conditioned floor area. It is equivalent to the Heating demand plus the Cooling demand.

HeatingAndHotWaterGasConsumption

Heating and hot water gas consumption. This indicator expresses the energy divided by the conditioned floor area.

HeatingConsumption

Indicator of delivered energy for space heating. The delivered energy is the energy, supplied to the technical building systems through the system boundary for space heating. It is expressed, aggregating different energy carriers (The energy content of fuels is given by their gross calorific value.) This indicator expresses the energy divided by the conditioned area. Reference: prEN 15603:2007 (E); indicator, prEN 15217:2005 (E)

HeatingDegreeDaysOnBase20

Accumulated temperature differences during the heating period between the base temperature, which is the temperature that the heating plant is assumed to provide, and the daily average outdoor temperature. Accumulated temperature differences are not counted when daily average outdoor temperature is above the threshold temperature.

HeatingDemand

Indicator of gross heat energy to be supplied to the conditioned space with the objective of covering transmission and ventilation losses minus solar and other internal heat gains. It does not include losses of the heating system. "Gross" means that the energy input of the ventilation heat recovery is also not considered. This indicator expresses the energy divided by the conditioned area. Reference: DATAMINE-->E gross heating energy demand of the building

HeatingPrimaryEnergy

Indicator of primary energy for heating. This indicator expresses the energy divided by the conditioned floor area. Reference: prEN 15603:2007 (E)

HeatingCoolingAndHotWaterPrimaryEnergy

Indicator of total primary energy for heating, cooling and hot water. This indicator expresses the energy divided by the conditioned floor area. Reference: DATAMINE-->H primary energy demand of the building; indicator, prEN 15217:2005 (E)

HeatingCoolingAndHotWaterCO2Emissions

Indicator of the total CO2 emissions, which derives from the energy consumption for heating, cooling and hot water. This indicator expresses the energy divided by the conditioned floor area. Reference: DATAMINE-->H CO2 emissions of the building; indicator, prEN 15217:2005 (E)

HotWater

Characteristic of the technical building system used to heat the hot water used in the building.

HotWaterEnergyConsumption

Indicator of delivered energy for hot water. The delivered energy is the energy, supplied to the technical building systems through the system boundary for hot water. It is expressed, aggregating different energy carriers (The energy content of fuels is given by their gross calorific value). This indicator expresses the energy divided by the conditioned area. Reference: prEN 15603:2007 (E); indicator, prEN 15217:2005 (E)

HotWaterEnergyDemand

Indicator of the energy need for hot water. This energy is the heat to be delivered to the needed amount of domestic hot water to raise its temperature from the cold network temperature to the prefixed delivery temperature at the delivery point. This indicator expresses the energy divided by the conditioned area. Reference: DATAMINE-->E hot water energy demand of the building / prEN 15603:2007 (E)

Insulation

Capacity of the building envelope of reducing the transmission of heat between the indoor and the outdoor environment.

JointGenerationOfHeatingAndCooling

Indicator which specifies whether the same system is used for space heating and cooling, or not.

BuildingLifeCyclePhase

Phase of the project life-cycle corresponding to this information. Reference: DATAMINE

Lighting

Characteristic of the artificial lighting.

BuildingLocation

The municipality where the building is located. Reference: DATAMINE-->B

MainBuildingUtilisation

The prevalent use of the building. Reference: DATAMINE-->B

NameOfTheDataSource

Name of the data source. Every individual data set comes from a specific data source. It could come for example from: energy certificates database of ICAEN or monitoring database of Leako.

NaturalVentilation

Strategies of natural ventilation of the indoor space.

NorthOrientedPercentOfWindowArea

The ratio of the area of the North oriented windows, with respect to the area of all windows.

Operation

The operation concerns the activity of users having an impact on the energy and indoor environment performance. It refers to the way the building and its technical systems are operated (e.g. the operation of windows and blinds and the control of heating set points). It also refers to the effects of the occupant activity in the indoor environment (e.g. thermal loads produced by occupants, lighting, and appliances). Reference: ISO 13790:2008

Orientation

Characteristics of orientation of the building in reference to the cardinal directions. These characteristics determine the expositions of the building to the solar radiation and wind, among others.

OriginOfDataSet

Every individual data set may refer to calculation (e.g. a data set corresponding to a simulation), monitoring (e.g. a data set corresponding to a monitored building), or it may have a different origin. Reference: EN 15603; DATAMINE --> H applied type of energy rating

OutdoorEnvironment

Climate and physical environment that influence the performance of a building. Outdoor environment is characterized by several variables such as outside temperature, wind speed and direction, and solar radiation.

PhotovoltaicPowerInstalled

The peak electric power which a photovoltaic panel provides transforming solar energy under standard conditions. Reference: EN 15316-4-6:2007; CTE-HE, 2006

PresenceTimePerDay

The number of occupied hours per day. The occupied hours of a building correspond to the time when the majority of the building space is in use. Reference: ISO 13790:2008

PrevalentOrientationOfWindowArea

The orientation with the largest percentage of the window area.

ProjectData

Parameters that identify a set of data referred to a certain project and define its generic characteristics such as its location, use, project execution data, building life-cycle phase, and origin of the data set.

Province

The territory of the province where the building is located.

SolarContributionForHotWater

The solar contribution for hot water is the ratio of the on-site solar energy contribution with respect to the annual energy demand for hot water. Reference: CTE-HE, 2006

SolarControl

Strategies to control solar radiation on the building envelope.

SouthOrientedPercentOfWindowArea

The ratio of the area of the south oriented windows with respect to the area of all windows.

ThermalInertia

Inertia of the building construction against temperature fluctuations over time.

TimeFractionAboveComfortTemperatureLimit

Ratio of hours when indoor temperature is above the comfort limit with respect to the number of occupied hours during one year. The upper comfort limit depends on the use of the building: e.g. the upper comfort limit for residential buildings is considered to be 26ºC. The occupied hours of the building correspond to the time when the majority of the building space is in use. Reference: prENrev 15251:2006 (E)

TimeFractionBelowOfComfortTemperatureLimit

Ratio of hours when indoor temperature is below the comfort limit with respect to the number of occupied hours during one year. The lower comfort limit depends on the use of the building: e.g. the lower comfort limit for residential buildings is considered to be 20ºC. The occupied hours of the building correspond to the time when the majority of the building space is in use. Reference: prENrev 15251:2006 (E)

TotalPrimaryEnergy

Indicator of total primary energy for all uses (heating, cooling, ventilation, domestic hot water, lighting, appliances, among others) or for electricity production. The primary energy is energy that has not been subjected to any conversion or transformation process. It is the amount of energy used to provide the final energy delivered to the building. It is calculated from the delivered and the exported amounts of energy carriers, using conversion factors. Total primary energy includes non-renewable and renewable energy. This indicator expresses the energy divided by the conditioned floor area. Reference: DATAMINE-->H primary energy demand of the building; prEN 15603:2007 (E)

TypeOfFirstHeatGenerator

Different types of first heat generator exist (e.g. boiler and heat pump, among others). The first heat generator is the main system of heat generation in a building (that one which produces the largest amount of heat). If this information is not available, the first heat generator is determined by its use according to this order: firstly, heating; secondly, hot water; thirdly, cooling. When different generators serve the same use, the first heat generator is determined according to the degree of centralization of each one, considering, firstly, centralized systems, and afterwards, individual systems. Reference: DATAMINE-->D

TypicalCoolingSetPointTemperature

The typical cooling set point temperature is the median value of cooling set point temperature over time. This is the internal (maximum intended) temperature as fixed by the control system in normal cooling mode.

TypicalHeatingSetPointTemperature

The typical heating set point temperature is the median value of heating set point temperature over time. This is the internal (minimum intended) temperature as fixed by the control system in normal heating mode.

UseOfFirstHeatGenerator

The heat generator can serve for one or more different uses such as space heating or hot water. The first heat generator is the main system of heat generation in a building (that one which produces the largest amount of heat). If this information is not available, the first heat generator is determined by its use according this order: firstly, heating; secondly, hot water; thirdly, cooling. When different generators serve the same use, the first heat generator is determined according to the degree of centralization of each one, considering, firstly, centralized systems, and afterwards, individual systems. Reference: DATAMINE-->D

UseOfFirstHeatGeneratorUsedByConditioningSystem

Uses of the first heat generator. This datum specifies if the first heat generator for space heating and/or hot water is also used for air conditioning/cooling (e.g., if a "reversible" process driven by a compression engine is applied). The first heat generator is the main system of heat generation in the building (that one which produces the largest amount of heat). Reference: DATAMINE-->D

WestOrientedPercentOfWindowArea

The ratio of the area of west oriented windows to the area of all windows.

WindowPercentOfEnevelopeArea

The ratio of the thermal envelope area with respect to the envelope area.